US3743259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spray treatment for flame cutting installation
Assignee: Caterpillar Inc
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Filing: 1971-08-30
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Granted: 1973-07-03
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Expires: 1991-08-30
Abstract
Abstract A spray treatment for employment in a flame cutting installation fo the type having a flame cutting machine with cutting torches mounted to traverse steel plate stock, an inclined trough beneath the path of the cutting torches, a settling pit at the lower end of the trough, and a pump for recirculating water from the settling pit to the upper end of the trough during the cutting operation in order to establish water flow through the trough which entraps oxide particles and carries away slag to reduce air pollution and facilitate slag removal. The spray treatment is such as to establish a spray upwardly of the trough for more effectively dispersing or purifying the ambient air about the installation.
Inventors
- 👤 R Hennelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:40
CPC Classifications
B; B23; B23K; B23K7/00; B23K7/10; B23K7/002
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
93 words
In a flame cutting installation including an open face support table having spaced-apart rails for supporting metal plate stock thereon, a flame cutting machine with cutting torches mounted to traverse said plate stock, a fluid flow waste removal trough disposed subjacent said rails beneath the path of said cutting torches, and means for establishing fluid flow through said trough, the improvement comprising means for establishing a direct fluid spray upwardly of said trough in close proximity beneath said rails to saturate the ambient air thereat and filter undesirable fumes and oxide particles therefrom.
Claim 2
Dependent Claim
93 words
In a flame cutting installation including an open face support table having spaced-apart rails for supporting metal plate stock thereon, a flame cutting machine with cutting torches mounted to traverse said plate stock, a fluid flow waste removal trough disposed subjacent said rails beneath the path of said cutting torches, and means for establishing fluid flow through said trough, the improvement comprising means for establishing a direct fluid spray upwardly of said trough in close proximity beneath said rails to saturate the ambient air thereat and filter undesirable fumes and oxide particles therefrom.
Claim 3
Dependent Claim
38 words
The installation of claim 1, wherein the spray means are disposed to impinge a portion of said spray on the lower surface of stock supported on said rails and establish a continuous cooling film across said lower surface.
Claim 4
Dependent Claim
63 words
The installation of claim 1, further defined by said trough having fluid inlets along the entire lengths of its opposite sides, and the spray means comprising respective pluralities of spray nozzles disposed upwardly from said inlets immediately subjacent said rails at spaced longitudinal intervals, said nozzles being inclined upwardly and inwardly to direct diverging spray jets therefrom toward stock supported on said rails.
Claim 5
Dependent Claim
32 words
The installation of claim 3, wherein said nozzles are communicated with a pair of high pressure manifolds respectively mounted immediately subjacent said rails in longitudinally extending parallel overlying relation to said inlets.
Claim 6
Dependent Claim
84 words
The installation of claim 4, wherein each of said manifolds comprises a relatively large diameter supply pipe having one end closed and a small diameter distribution pipe coaxially communicating with and extending from its opposite end, said distribution pipe being reentrantly turned to extend parallel to said supply pipe along the entire length thereof, said distribution pipe being closed at its free end, said nozzles communicating with said distribution pipe at spaced longitudinal intervals thereof, and means for supplying water to said supply pipe.
Claim 7
Dependent Claim
34 words
The installation of claim 5, further defined by a valve in the reentrantly turned portion of said distribution pipe for regulating flow therein to thereby regulate the intensity of spray directed from said nozzles.
Claim 8
Dependent Claim
80 words
The installation of claim 5, further defined by the water supply means comprising a pair of inlet pipes communicating with the opposite ends of said supply pipe, said inlet pipes to said supply pipes depending therefrom and being secured to said inlets of said trough to support said supply pipes in directly overlying parallel relation to said inlets with said distribution pipes inwardly disposed from said supply pipes, and plumbing means communicated with said inlet pipes for supplying water thereto.
Claim 9
Dependent Claim
36 words
The installation of claim 7, further defined by a valve in the reentrantly turned portion of each of said distribution pipes for regulating flow therein to thereby regulate the intensity of spray directed from said nozzles.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |